The reasons why rice cooker cakes are not fluffy are:

1. The flour used is inappropriate. Many people think that when making cakes, they only need to choose ordinary flour. However, such flour has sufficient gluten and is suitable for making noodles, but not suitable for making cakes, otherwise the cake will not be fluffy.

2. The egg whites are not whipped enough. Beating egg whites is also a very critical step. Make use of the foaming properties of eggs. If the egg whites are beaten well, the honeycomb holes in the middle of the cake will be denser and looser. If the egg whites are not beaten enough, the cake will be hard and not fluffy and tender enough. , but if it is over-whipped, the cake will be too fluffy and the taste will not be good. The best state is to whip the egg whites until they are dry and foamy.

3. The mixing method is incorrect. To make a rice cooker cake, you need to process the egg whites and egg yolks separately, then pour the beaten dry egg whites into the stirred egg yolk paste and mix. This step seems simple, but its operation method is more particular and cannot be stirred like eggs. Otherwise, the cake will not be fluffy enough.